Featured Research

from universities, journals, and other organizations

Seismic Hazard: Stateline Fault System Is Major Component Of Eastern California Shear Zone

Date:
November 6, 2007
Source:
Geological Society of America
Summary:
The 200-km (125 miles)-long Stateline fault system is a right-lateral strike-slip fault zone with clear Late Quaternary surface ruptures extending along the California-Nevada state line, from Primm, Nevada area along Interstate 15 to the Amargosa Valley. The fault passes within 40 km of the Las Vegas strip. The magnitude of accumulated offset, evidence for Late Quaternary slip, and rapid long-term slip rate indicate that the Stateline fault system is a major component of the Eastern California shear zone. Given its proximity to population centers and important infrastructure in southern Nevada, the fault warrants close scrutiny in seismic hazards analyses of the region.

The 200-km (125 miles)-long Stateline fault system is a right-lateral strike-slip fault zone with clear Late Quaternary surface ruptures extending along the California-Nevada state line, from Primm, Nevada area along Interstate 15 to the Amargosa Valley.

The fault passes within 40 km of the Las Vegas strip, 10 km of the town center of Pahrump, Nevada, and appears to end near the town of Amargosa Valley, Nevada (about 40 km west-southwest of the site of the proposed high-level nuclear waste repository at Yucca Mountain).

This fault has long been considered inactive and of only minor importance to the tectonic pattern of eastern California and southwestern Nevada, whereas fault systems like the Death Valley, Panamint Valley, and Owens Valley have received much more attention.

New research focused on the Stateline fault system is beginning to change how we view this fault zone. Guest et al. present geologic data that establishes the minimum offset on the southern segment of the fault system to be 30 4 km over the last 13 million years.

This implies a minimum average slip rate for the southern segment of the fault system of 2.3 0.35 mm/yr. This is twice the slip rate estimated from geodetic monitoring in the region, and therefore the fault is either in a transient period of slow slip or has been abandoned as activity in the eastern California shear zone has migrated west.

The magnitude of accumulated offset, evidence for Late Quaternary slip, and rapid long-term slip rate indicate that the Stateline fault system is a major component of the Eastern California shear zone. Given its proximity to population centers and important infrastructure in southern Nevada, the fault warrants close scrutiny in seismic hazards analyses of the region.


Story Source:

The above story is based on materials provided by Geological Society of America. Note: Materials may be edited for content and length.


Cite This Page:

Geological Society of America. "Seismic Hazard: Stateline Fault System Is Major Component Of Eastern California Shear Zone." ScienceDaily. ScienceDaily, 6 November 2007. <www.sciencedaily.com/releases/2007/11/071106075253.htm>.
Geological Society of America. (2007, November 6). Seismic Hazard: Stateline Fault System Is Major Component Of Eastern California Shear Zone. ScienceDaily. Retrieved April 18, 2014 from www.sciencedaily.com/releases/2007/11/071106075253.htm
Geological Society of America. "Seismic Hazard: Stateline Fault System Is Major Component Of Eastern California Shear Zone." ScienceDaily. www.sciencedaily.com/releases/2007/11/071106075253.htm (accessed April 18, 2014).

Share This



More Earth & Climate News

Friday, April 18, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

The Great British Farmland Boom

The Great British Farmland Boom

Reuters - Business Video Online (Apr. 17, 2014) Britain's troubled Co-operative Group is preparing to cash in on nearly 18,000 acres of farmland in one of the biggest UK land sales in decades. As Ivor Bennett reports, the market timing couldn't be better, with farmland prices soaring over 270 percent in the last 10 years. Video provided by Reuters
Powered by NewsLook.com
Small Reactors Could Be Future of Nuclear Energy

Small Reactors Could Be Future of Nuclear Energy

AP (Apr. 17, 2014) After the Fukushima nuclear disaster, the industry fell under intense scrutiny. Now, small underground nuclear power plants are being considered as the possible future of the nuclear energy. (April 17) Video provided by AP
Powered by NewsLook.com
Change of Diet Helps Crocodile Business

Change of Diet Helps Crocodile Business

Reuters - Business Video Online (Apr. 16, 2014) Crocodile farming has been a challenge in Zimbabwe in recent years do the economic collapse and the financial crisis. But as Ciara Sutton reports one of Europe's biggest suppliers of skins to the luxury market has come up with an unusual survival strategy - vegetarian food. Video provided by Reuters
Powered by NewsLook.com
How Mt. Everest Helped Scientists Research Diabetes

How Mt. Everest Helped Scientists Research Diabetes

Newsy (Apr. 15, 2014) British researchers were able to use Mount Everest's low altitudes to study insulin resistance. They hope to find ways to treat diabetes. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins